diff --git a/src/Microsoft.Management.Infrastructure.CimCmdlets/CimCommandBase.cs b/src/Microsoft.Management.Infrastructure.CimCmdlets/CimCommandBase.cs
index 2ea726c77..dbf90255c 100644
--- a/src/Microsoft.Management.Infrastructure.CimCmdlets/CimCommandBase.cs
+++ b/src/Microsoft.Management.Infrastructure.CimCmdlets/CimCommandBase.cs
@@ -379,7 +379,7 @@ namespace Microsoft.Management.Infrastructure.CimCmdlets
                 }
                 if (nameset.Count == 0)
                 {
-                    throw new PSArgumentException(Strings.UnableToResolvePareameterSetName);
+                    throw new PSArgumentException(Strings.UnableToResolveParameterSetName);
                 }
                 else
                 {
@@ -433,7 +433,7 @@ namespace Microsoft.Management.Infrastructure.CimCmdlets
                 {
                     if (boundParameterSetName != null)
                     {
-                        throw new PSArgumentException(Strings.UnableToResolvePareameterSetName);
+                        throw new PSArgumentException(Strings.UnableToResolveParameterSetName);
                     }
                     boundParameterSetName = parameterSetName;
                 }
@@ -445,7 +445,7 @@ namespace Microsoft.Management.Infrastructure.CimCmdlets
                 // throw if there are > 1 parameter set
                 if (noMandatoryParameterSet.Count > 1)
                 {
-                    throw new PSArgumentException(Strings.UnableToResolvePareameterSetName);
+                    throw new PSArgumentException(Strings.UnableToResolveParameterSetName);
                 }
                 else if (noMandatoryParameterSet.Count == 1)
                 {
@@ -462,7 +462,7 @@ namespace Microsoft.Management.Infrastructure.CimCmdlets
             // throw if still can not find the parameter set name
             if (boundParameterSetName == null)
             {
-                throw new PSArgumentException(Strings.UnableToResolvePareameterSetName);
+                throw new PSArgumentException(Strings.UnableToResolveParameterSetName);
             }
             return boundParameterSetName;
         }
diff --git a/src/Microsoft.Management.Infrastructure.CimCmdlets/CimIndicationWatcher.cs b/src/Microsoft.Management.Infrastructure.CimCmdlets/CimIndicationWatcher.cs
index 608385fe2..91d9006f6 100644
--- a/src/Microsoft.Management.Infrastructure.CimCmdlets/CimIndicationWatcher.cs
+++ b/src/Microsoft.Management.Infrastructure.CimCmdlets/CimIndicationWatcher.cs
@@ -208,7 +208,7 @@ namespace Microsoft.Management.Infrastructure.CimCmdlets
             string theNameSpace,
             string theQueryDialect,
             string theQueryExpression,
-            UInt32 theOpreationTimeout)
+            UInt32 theOperationTimeout)
         {
             enableRaisingEvents = false;
             status = Status.Default;
@@ -220,7 +220,7 @@ namespace Microsoft.Management.Infrastructure.CimCmdlets
             this.nameSpace = theNameSpace;
             this.queryDialect = ConstValue.GetQueryDialectWithDefault(theQueryDialect);
             this.queryExpression = theQueryExpression;
-            this.operationTimeout = theOpreationTimeout;
+            this.operationTimeout = theOperationTimeout;
             this.computerName = theComputerName;
         }
 
diff --git a/src/Microsoft.Management.Infrastructure.CimCmdlets/CimRegisterCimIndication.cs b/src/Microsoft.Management.Infrastructure.CimCmdlets/CimRegisterCimIndication.cs
index 535d84db3..d1635eb98 100644
--- a/src/Microsoft.Management.Infrastructure.CimCmdlets/CimRegisterCimIndication.cs
+++ b/src/Microsoft.Management.Infrastructure.CimCmdlets/CimRegisterCimIndication.cs
@@ -135,17 +135,17 @@ namespace Microsoft.Management.Infrastructure.CimCmdlets
         /// <param name="nameSpace"></param>
         /// <param name="queryDialect"></param>
         /// <param name="queryExpression"></param>
-        /// <param name="opreationTimeout"></param>
+        /// <param name="operationTimeout"></param>
         public void RegisterCimIndication(
             string computerName,
             string nameSpace,
             string queryDialect,
             string queryExpression,
-            UInt32 opreationTimeout)
+            UInt32 operationTimeout)
         {
             DebugHelper.WriteLogEx("queryDialect = '{0}'; queryExpression = '{1}'", 0, queryDialect, queryExpression);
             this.TargetComputerName = computerName;
-            CimSessionProxy proxy = CreateSessionProxy(computerName, opreationTimeout);
+            CimSessionProxy proxy = CreateSessionProxy(computerName, operationTimeout);
             proxy.SubscribeAsync(nameSpace, queryDialect, queryExpression);
             WaitForAckMessage();
         }
@@ -157,14 +157,14 @@ namespace Microsoft.Management.Infrastructure.CimCmdlets
         /// <param name="nameSpace"></param>
         /// <param name="queryDialect"></param>
         /// <param name="queryExpression"></param>
-        /// <param name="opreationTimeout"></param>
+        /// <param name="operationTimeout"></param>
         /// <exception cref="ArgumentNullException">throw if cimSession is null</exception>
         public void RegisterCimIndication(
             CimSession cimSession,
             string nameSpace,
             string queryDialect,
             string queryExpression,
-            UInt32 opreationTimeout)
+            UInt32 operationTimeout)
         {
             DebugHelper.WriteLogEx("queryDialect = '{0}'; queryExpression = '{1}'", 0, queryDialect, queryExpression);
             if (cimSession == null)
@@ -172,7 +172,7 @@ namespace Microsoft.Management.Infrastructure.CimCmdlets
                 throw new ArgumentNullException(String.Format(CultureInfo.CurrentUICulture, Strings.NullArgument, @"cimSession"));
             }
             this.TargetComputerName = cimSession.ComputerName;
-            CimSessionProxy proxy = CreateSessionProxy(cimSession, opreationTimeout);
+            CimSessionProxy proxy = CreateSessionProxy(cimSession, operationTimeout);
             proxy.SubscribeAsync(nameSpace, queryDialect, queryExpression);
             WaitForAckMessage();
         }
diff --git a/src/Microsoft.Management.Infrastructure.CimCmdlets/resources/Microsoft.Management.Infrastructure.CimCmdlets.Strings.resx b/src/Microsoft.Management.Infrastructure.CimCmdlets/resources/Microsoft.Management.Infrastructure.CimCmdlets.Strings.resx
index 90a60cd30..0087d0a09 100644
--- a/src/Microsoft.Management.Infrastructure.CimCmdlets/resources/Microsoft.Management.Infrastructure.CimCmdlets.Strings.resx
+++ b/src/Microsoft.Management.Infrastructure.CimCmdlets/resources/Microsoft.Management.Infrastructure.CimCmdlets.Strings.resx
@@ -221,7 +221,7 @@
     <value>Unable to add property '{0}' to input object '{1}'. The class schema does not contain the property.</value>
     <comment>{0} stand for property name, {1} stand for cim instance path.</comment>
   </data>
-  <data name="UnableToResolvePareameterSetName" xml:space="preserve">
+  <data name="UnableToResolveParameterSetName" xml:space="preserve">
     <value>Unable to resolve the parameter set name.</value>
     <comment>N/A</comment>
   </data>